If m∠A =91° and m∠B = 40°, find m∠1.
Assuming this is a triangle, all three angles should add to 180º91 + 40 + x = 180131 + x = 180Subtract 131 from both sidesx = 49The measure of angle 1 is 49º
Answer:
C) 131
Step-by-step explanation: